AJA IOExpress, Инструкция по установке и эксплуатации, Страница: 35 / 68

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Io Express Installation and Operation Guide — Using the AJA Control Panel
Playback Timing (greyed-out when in Input Passthrough)
Genlock ( Freerun , Ref In , Input 1 , or Input 2 )—Selects how Io Express will synchronize program
video:
Freerun: in this mode, Io Express generates video without an external reference source
Ref In: directs Io Express to use the Ref Video source for sync (usually an analog black burst
video signal)
Video : directs Io Express to use whichever video input source has been selected in the
Inputs screen for sync
Note: When the Io Express goes into capture mode, the Genlock mode automatically switches
to Video In.
Timing ( Horiz and Vert )—these two pull-downs allow output timing adjustment with reference
to the Ref Video source selected. The Horizontal reference can be adjusted by selecting a
number of pixels (clocks) to offset. Vertical can be adjusted by specifying a number of lines
to offset.
Format Screen
The Format screen shows the video format currently in use by the Io Express framebuffer (called
the
Primary Format ) and allows you to change it. Throughout the Control Panel, choices are
always presented based on what Io Express can do with the signals available and the inputs/
outputs selected. For example, on the Formats screen, if the output or inputs are a different
format than the primary, you’ll see an additional information pane that allows you to view and
edit the secondary format—including control over whether down-conversion is employed. In
the figure below, the SDI input (Secondary Format) is being down-converted to the Primary
Format.
Format Screen and Pulldown Menu
Formats menu
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